000
AXPZ20 KNHC 190926
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Fri Jun 19 2020

Tropical Weather Discussion for the eastern Pacific Ocean from
the Equator to 32N, east of 140W. The following information is
based on satellite imagery, weather observations, radar, and
meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through 
0900 UTC.

...TROPICAL WAVES...

A tropical wave is analyzed along 92W, moving west at 15 kt. 
Scattered moderate isolated strong convection is noted from 06N 
to 10N between 88W and 94W. 

A tropical wave is analyzed along 102W, moving west at 10 to 15 
kt. Scattered moderate convection is noted within 90 nm of the 
wave axis.

A tropical wave is analyzed along 122W, moving west at 15 kt. 
Scattered moderate isolated strong convection is noted from 08N 
to 14N between 120W and 125W.

A tropical wave is analyzed along 140W, moving west at 15 kt. 
Isolated convection is noted within 60 nm of the wave axis.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

The monsoon trough extends from 08N78W to 10N87W to 10N105W to 
13N122W to 11N127W to 12N130W to 10N133W to 10N140W. Convection 
occurring near the tropical waves is described above. Scattered 
moderate to strong convection is noted elsewhere from 08N to 12N 
between 106W and 118W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Scatterometer wind data shows mainly light to gentle winds west 
of the Mexico coastline. A deep layer ridge west of the area is 
building eastward following a sharp trough extending from the 
southern Rockies through central Baja California to 22N128W. The 
associated pressure gradient supports moderate to fresh NW winds 
from Punta Eugenia to Cabo San Lucas west of Baja California. 
The gradient across the northern Gulf of California will relax 
today as the ridge builds eastward. NW swell producing 6-7 ft 
seas W of Baja California Norte will subside this morning. 

Looking ahead, moderate to fresh NW winds are expected across 
the waters of Baja California S of Punta Eugenia this weekend.

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR...

Gentle to moderate SW monsoon flow prevails south of the monsoon 
trough, with gentle to moderate winds north of the trough axis. 
Seas are generally in the 4-6 ft range. Cross-equatorial long 
period SW swell is expected to arrive later today. Winds south 
of the monsoon trough will also increase to moderate to fresh 
today, and spread to the coasts between Panama and Costa Rica.

REMAINDER OF THE AREA...

A ridge extends E-SE from high pressure centered near 35N140W to 
just north of the Revillagigedo Islands. The associated pressure 
gradient is supporting fresh trade winds from 10N to 20N west of 
120W. Seas are 6-7 ft across this area in mixed swell. Moderate 
to fresh trade winds and 5-7 ft seas prevail elsewhere north of 
the convergence zone, west of 120W.
 
Moderate southerly flow prevails south of the monsoon trough. 
Long-period southerly swell dominates the waters south of 12N 
and east of 115W, in 6 to 8 ft seas. Another round of southerly 
swell will enter the area later today, and raise sea heights 1-2 
ft across the waters south of 10N.

$$
Mundell